C# 如何将System.Web.Mvc.SelectListItem转换为列表
我希望使用datatable显示数据,以便我的硬编码System.Web.Mvc.SelectListItem值和文本收集并使用linq生成列表,但获取错误System.linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String] var parentkeylist=clsDataCache.GetPriorityList().ToList() List data=this.getAllstOrganizationEntityData(输入) List data=this.getAllstOrganizationEntityData(输入)C# 如何将System.Web.Mvc.SelectListItem转换为列表,c#,C#,我希望使用datatable显示数据,以便我的硬编码System.Web.Mvc.SelectListItem值和文本收集并使用linq生成列表,但获取错误System.linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String] var parentkeylist=clsDataCache.GetPriorityList().ToList() List data=this.getAl
foreach(数据中的stp_OrganizationEntity obj)
{
if(obj.parentkey!=null)
{
obj.priotytext=parentkeylist.Where(x=>x.Value==obj.parentkey.ToString()).Select(x=>x.Text.Cast().ToString();//非Cast文本值获取错误System.Linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String]
}
其他的
{
obj.priotytext=“Root”;
}
}
if(data!=null&&data.Count>0)
{
long totalRecords=data.FirstOrDefault()。返回\u键;
var tut=(从数据中的t开始)
选择新的
{
t、 entityname,
t、 组织键,
t、 priotytext,
t、 EntityTypeKey,
t、 整体水平,
//t、 seqfirstindex,
//t、 seqfullindex,
//t.entitycpde,
//t、 描述,
t、 我很活跃,
ex_nvarchar1=objSecPanel.genButtonPanel(t.entitykey.GetValueOrDefault(-99),“entitykey”,this.HttpContext.User.Identity作为ClaimsIdentity,
“StpOrganizationEntity/StpOrganizationEntityUpdate”、“EditStpOrganizationEntity”、“StpOrganizationEntity/StpOrganizationEntityDelete”、“DeleteStpOrganizationEntity”,
“STPCorganizationEntity/STPCorganizationEntityDetails”、“STPCorganizationEntityDetails”)
}).ToList();
}您得到的错误是什么?System.Linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String]什么类型的x.Text?
parentkeylist.Where(x=>x.Value==obj.parentkey.ToString()).Select(x=>x.Text.Cast().ToString()代码>您正在对IEnumerable调用ToString()。如果您想通过使用String .Ing.x.text获取iQuestBy值中的字符串值,则选择StrutsListITEM文本属性,它是字符串。
var parentkeylist = clsDataCache.GetPriorityList().ToList();//this is SelectListItem
foreach (stp_organizationentityEntity obj in data)
{
if (obj.parentkey != null)
{
obj.priotytext = parentkeylist.Where(x => x.Value == obj.parentkey.ToString()).Select(x => x.Text).Cast<string>().ToString();//not cast Text value get error System.Linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String]
}
else
{
obj.priotytext = "Root";
}
}
if (data != null && data.Count > 0)
{
long totalRecords = data.FirstOrDefault().RETURN_KEY;
var tut = (from t in data
select new
{
t.entityname,
t.organizationkey,
t.priotytext,
t.entirytypekey,
t.entitylevel,
//t.seqfirstindex,
//t.seqfullindex,
// t.entitycpde,
//t.description,
t.isactive,
ex_nvarchar1 = objSecPanel.genButtonPanel(t.entitykey.GetValueOrDefault(-99), "entitykey", this.HttpContext.User.Identity as ClaimsIdentity,
"StpOrganizationEntity/StpOrganizationEntityUpdate", "EditStpOrganizationEntity", "StpOrganizationEntity/StpOrganizationEntityDelete", "DeleteStpOrganizationEntity",
"StpOrganizationEntity/StpOrganizationEntityDetails", "StpOrganizationEntityDetails")
}).ToList();
var parentkeylist = clsDataCache.GetPriorityList().ToList();//this is SelectListItem
foreach (stp_organizationentityEntity obj in data)
{
if (obj.parentkey != null)
{
obj.priotytext = parentkeylist.Where(x => x.Value == obj.parentkey.ToString()).Select(x => x.Text).Cast<string>().ToString();//not cast Text value get error System.Linq.Enumerable+WhereSelectListIterator`2[System.Web.Mvc.SelectListItem,System.String]
}
else
{
obj.priotytext = "Root";
}
}
if (data != null && data.Count > 0)
{
long totalRecords = data.FirstOrDefault().RETURN_KEY;
var tut = (from t in data
select new
{
t.entityname,
t.organizationkey,
t.priotytext,
t.entirytypekey,
t.entitylevel,
//t.seqfirstindex,
//t.seqfullindex,
// t.entitycpde,
//t.description,
t.isactive,
ex_nvarchar1 = objSecPanel.genButtonPanel(t.entitykey.GetValueOrDefault(-99), "entitykey", this.HttpContext.User.Identity as ClaimsIdentity,
"StpOrganizationEntity/StpOrganizationEntityUpdate", "EditStpOrganizationEntity", "StpOrganizationEntity/StpOrganizationEntityDelete", "DeleteStpOrganizationEntity",
"StpOrganizationEntity/StpOrganizationEntityDetails", "StpOrganizationEntityDetails")
}).ToList();